US2392319A - Valve structure - Google Patents

Description

I Jan. 8,1946. 7 s. G. HARWOQD 2,392,319

VALVE STRUCTURE Fil'e d March 5, 1943 2 Sheets-Sheet 1 a? I 22 v- 22 zl -2 l I F1371, if V Inventor": STAN LEY G. HARWOOD Jan. 8, 1946. s. G. HARWOOD 2,392,319

VALVE STRUCTURE Filed March 5, 1945 2 Sheets-Sheet 2 I Fig.- 91

4fla/ 46 I n K l Him FY3712. 4 45 Inventor:

STANIZYG. HARWOOD j mtf.

Patented Jan. 8, 51946 Stanley G. Harwood, San Marino, Calif.

Application March 5, 1943, Serial No. 478,093

Claims.

This invention relates to a valve structure, and particularly to a valve of the oscillating or rotating type for controlling the flow of fluids through various conduits.

It is an object of this invention to provide an eificient valve which is simple in construction, easily turned and one in which the thrust due to the liquid is balanced.

It is also an object of this invention to provide a valve member adapted to turn in a cylindrical recess, the same having a passage extending therethrough adapted to be moved into and out of alignment with a passage extending transversely of and communicating with said recess, said member having annular portions of yielding material above and below the passage therethrough adapted to tightly engage the wall of said recess and having vertical portions at the ends of the passage I therethrough extending between said annular portions and also tightly engaging the wall of said recess.

It is a further object of the invention to provide a valve structure as set forth in the preceding paragraph together with a shaft or stem extending axially through said member for oscillating the same, said member having a chamber therein surrounding said shaft or rod and communicating with one end of said member whereb two or more of said members may be spaced vertically on said shaft.

It is another object of the invention to provide a casing having a recess therein with vertically spaced inlet and outlet passages communicating with said recess, said casing also having vertically spaced passages at either side thereof circumferentially spaced from said inlet and outlet passages and outlet conduits communicating with the recess therein and havin inlet and outlet service conduits communicating with the recess therein together with a pair of vertically spaced valve members in said recess adapted to be tumed and constructed and arranged to be balanced vertically by the fluid passing therethrough and having openings adapted to be brought into and out of alignment with said service conduits.

These and other objects and advantage of the (c1. zen-1 03) invention will be fully set forth inthe following description made in connection withythe accompanying drawings in which like reference characters refer to similar parts throughout the several views and in which:

' Fig. 1 is a view in side elevation of the valve;

Fig. 2 is a vertical section taken on line 2-2 of Fig. 1 as indicated by the arrows; I

Fig. 3 is a vertical section taken on line 33 h of Fig. 2 as indicated by the arrows;

' Fig. 4 is a horizontal section taken on line 4-4 of Figs. 2 and 3 indicated by the arrows;

Fig. 5 is a horizontal section taken on line 5-5 of Figs. 2 'and 3 indicated by the arrows;

Fig. 6 is a view in side elevation of the valve member used;

Fig. 7 is a view similar to Fig. 3 showing the valve in a different position;

Fig. 8 is a view similar to Fig. 4 showing the.

valve in a different position;

Fig, 9 is a view similar to Fig. 5 showing the valve in a different position;

Fig. 10 is a view in central vertical section through a modified form of valve;

Fig. 11 is a horizontal section taken on line ll-ll of Fig. 10 as indicated by the arrows;

Fig. 12 is a view similar to Fig. 11 showing the valve in a different position; and

Fig. 13 is a view in side elevation of the valve member used in Figs. 10 to 12.

Referring to the drawings, a valve structure is shown comprising a casing l5. While thi casing could be variously formed, in the embodiment of the invention illustrated it is shown as having a base portion or flange [5a by means of which it could be attached 'to another member by bolts or screws passing through the holes l5aa in said base. .A central substantially cylindrical portion or body |5b upstands from base I5a. Portion |5b has extending from opposite sides thereof bosses I50 and l5d illustrated as substantially cylindrical in form and portion l5b also has extending laterally therefrom an elongated boss [5e having, upper and lower semi-cylindrical ends. Portion 15c is disposed at an angle to portions I50 and 15d and in the embodiment of the invention illustrated it is shown as extending at right angles to bosses [5c and l5d. Portion l5b has a cylindrical recess l5 therein which is counterbored at its upper end toreceive a packing washer l6 and a closing cap plug H, which latter is secured to the upper end of portion 1.51) by the circumferentially spaced screws [8 extending through member ll and into portion l5b. A gasket i9 is disposed between member 11 and the top of portion l5b. A

packing member 20 is shown in the bottom portion of member I! and is forced into engagement 1 with the latter by the pressure of fluid. A shaft cessed into the top of member II. A collar 24 is secured to shaftll :below collar l in any suitable manneras by a pink 5... Shaft 2| extends. entiree 1y through the recess I51 and has its lower end journalled in a plug or bushing 21 disposed in a recess in the lower portion of member l5. The.

boss He is provided with a bore I59 threaded at its outer end for the attachment of a conduit or connection 28 which may receive a conduit 29.

A comparatively small passage 15h extends from the upper portion of bore 15g into reces |5f and a similar passage l5i extends from the lower portion'of bore l5g into the passage l5). Bos [5d is provided with a bore l5i threaded at its outer earlier the attachment of a conduit or connection 30 which may receive a conduit 3|. sage I51: extends from the upper end of passage I5 into passage I5! and another similar passage l5m extends from the lower portion of bore I57 into the recess l5f. The boss l5e is provided at its upper portion with a. bore l5n threaded at its outer end for the attachment of a. conduit 33'and a passage I50 leads from bore I5n into recess I51. Boss We is provided with a bore I5p at its lower end threaded at its outer portion for the attachment of aconduit 34 and a passage I 5q extends from bore l5p into the recess I51.

Shaft 2| has secured thereto within recess I5j in vertically spaced relation a pair of similar members 35. Member 35 is shown in side elevation in Fig. 6 and is Preferably substantially cylindrical in form, the 'same having a cylindrical recess 35a open-at one end of said member which is illustrated as the upper end thereof. A passage 35b leads from recess 35a to the outer side of member 35 andanother passage 35c leads from recess 35a to the outer side of member 35. Passages 35b and 350 are preferably disposed at an angle to each other and in the embodiment of the invention illustrated this angle is substantially 120 degrees. Member 35 has annular gaskets.36 extending thereabout above and below the passages 35b and 350, the same being of yielding or resilient material and constructed and arranged to tightly engage the wall of recess |5,f. While these gaskets may be made of various forms, in the embodiment of the invention illustrated they are shown as circular in transverse cross section. Vertical gaskets 35a extend between gaskets 35 and whil these might be variously formed, in the embodiment of the inven tion illustrated they are shown as part of and connecting gaskets 35; The vertical gaskets 35 are disposed beyond the remote ends of the passages 35c and 35b as clearly shown in Figs. 4 and 5. Gaskets 360 also tightly engage the wall of recess l5).

In the operation of the valve structure above described, liquid handled can be supplied through the conduit-34. The liquid will pass through passage l5qinto'the space between the valve members. 35., Fromv here it will pass into the recess 35:; of the. lower member 35 and will pass out throughpassage 15m, into bore 157' and into the conduitconnected thereto. The liquid will be supplied ,throughsaid conduit to any desired point. The liquid can be constantly supplied or it can be intermittently supplied to operate some hydraulic apparatus such as a diaphragm valve. In either case if the liquid is continuously-circulated so that it is returned through the valve it will be returned through a conduit connected to communicate with bore lie and will pass through the passage I5h into passage 35c of the upper member 35 and will then pass through the chamber 350 of upper member 35 into recess l5] and will pass out through passage I50 into bore I512. and out through conduit 33. It will be noted that with the arrangement of the members 35. i

the vertical thrust onmembers 35 "and the valve rod will be balanced. The pressure from the incoming fluid which usually is relatively high is exerted equally upon the upper and lower-members 35. There is thus very little if any. vertical thrust on the shaft 2|. In practice a connection (not shown) may be mad between the outlet passage and the bottom of bore l5! thus balancing the pressure of the outlet fluid, which pressure will be quite small.

With the arrangement disclosed the flow of the liquid can be quickly reversed by swinging the lever or handle 22 ,to bring the passages 35b and 350 into different positions. When this is don the members 35 will be moved from the positions shown in Figs. 4 and 5 to the positions shown in Figs. 8 and 9. With the valve turned as shown in Figs. 8 and 9, the liquid would then enter the valve through conduit 34 as before and between members 35. It would pass through chamber 35a of lower member 35 out through passage 350 into passage [5i of lower member 35 and out through passage I557. The liquid would be conveyed to the desired point or apparatus and the return liquid would pass through conduit 3| into bore i5:i through passage l5k and through passage 35c oi the upper member 35 upward through the chamber 35a of the upper member 30 to passage I50 into bore in and out through conduit 33 which is the outlet conduit. As before set forth the vertical thrust on shaft 2| is balanced by the fluid.

In Figs. 10 to 13 a modified form of valve is shown comprising a. casing 40 of general cylindrical form having oppositely extending bosses 40a and 40b. Boss 40a is provided with a bore 400 threaded at its outer end to receive a suitable conduit. Boss 40b is provided with a bore 40d which is also threaded at its outer end for the attachment of a suitable conduit. The casing 40 is provided with a central bore or recess We of cylindrical form, which bore 01'' recess is threaded at its upper end. A cap or plug 4| has a central portion threaded to screw into the top 1 of casing 40 and has a flange 4| a engaging the top of casing 40. tween flange 4|a andthe top of casing 40. A valve rod 43 extends centrally through cap 4| and recess 40c and has its lower end journalled in a recess in the bottom of the bore 40c. Rod 43 has secured to its upper end a knob or handle member 44. A valve member 45 is disposed in recess 40c and is secured to valve rod 43. In the embodiment of th invention illustrated valve member 45 and valve rod 43 are shown as integral. Valve member 45 is of general cylindrical form and has a passage 45a extending transverselytherethrough adapted to be brought into and out of alignment with passages 40c and 40d. Member 45 has annular gasket members 46 seated therein and extending thereabout above and below passage 45a, which gaskets will be made of yielding or resilient material and are constructed and arranged to tightly engage the wall of bore A gasket 42 is disposed be-= or reces 40c. Vertical gasket members 460 extend between gaskets 46 at each side of each end. of passage 45a as shown in Figs. 11 and 13. While gaskets 46a could be variously formed, in the embodiment of the invention illustrated they are shown as integral with and connecting gaskets.

In operation the liquid to be controlled will enter one side of valve casing 40 and if the valve member 40 is in the position shown in Figs. and 11, the liquid can pass through said valve member and out at the conduit at the other side of valve casing 40. The liquid'will be prevented from passing into the bore 40c by the gaskets 46 and 46a. When valve rod 43 is turned by handle 44 valve member 45 will be brought to the position shown in Fig. 12. In this position the liquid will be prevented from passing member 45 by the gaskets 46 and 46a so that any passage through casing 40 will be shut off.

From the above description it will be seen that I have provided a very simple and efiicient valve construction. The valve members 35 and 45 are quite simple in construction and the gaskets thereon will tightly fit against the valve casing. These gaskets can be easily made and installed and the valve member proper does not have to have a tight fit in the casing. The friction of the gasket members is quite small and the valve can be very easily turned. With the use of two or more of the valve members shown in Figs. 1 to 9 as above explained, the valve is balanced and can thus be very easily turned. It is not necessary to have a valve member with a tight fit in the valve casing. It will readily be seen that quite a number of valve members 35 could be used on the shaft 2| and that the corresponding number of conduits could be controlled by one valve. Such a compound valve could be very easily turned to open and closed position. With such a valve structure adapted for easy turning a very sensitive control can be had and the valve can be used in various regulators and in relief and modulating valve structures. The valve is very suitable for operation by a motor or hydraulic power unit. The present valve makes a very tight closure and the liquid is completely shut oif.

By spacing the vertical gaskets of the valve member at the desired angular intervals and rotating the same by clockwork or by synchronized motor this valve can be used to change the direction of fiow of one or more streams according to any timing required and as often done in the regeneration of a water softener or filter.

The valve has been amply demonstrated in actual practice and found to be very successful and eflicient.

It will of course, be understood that various changes may be made in the form, details, arrangement and proportion of the parts, without departing from the scope of applicant's invention, which generally stated, consists in a device capable of carrying out the objects above set forth, in the parts and combinations of parts disclosed and defined in the appended claims.

What is claimed is: v

1. A valve structure comprising a casing having a cylindrical recess therein, a shaft extending axially of said recess, a pair of valve members secured to said shaft in vertically spaced relation, each member being of cylindrical form, each of said members having an annular chamber therein about said shaft and being open at the top of said member, passages extending radially through each of said members from the recess therein at an angle to each other, said casing having an inlet passage extending into said recess between said members, said casing having an outlet passage extending from the recess therein above said members, said casing having pairs of passages extending into the recess therein cirin the other of said valve members up through the chamber therein into said recess and out through said outlet opening.

2. The structure set forth in claim 1, said valve members each having annular portions of yielding material engaging the wall of said recess above and below the passages in said valve vmembers and having vertical portions of yielding material extending between said annular portions and engaging the wall of said recess at the remote sides of the outer ends of said passages in said valve members.

3. A valve structure having in combination, a member having a cylindrical chamber therein,

said chamber having circumferentially spaced passages leading therefrom, a valve member of general cylindrical form disposed in and coaxially with said chamber, said valve member having a central chamber therein and passages extending radially from said chamber to the outer side of said valve member, said valve member having rings of yielding material surrounding the same and engaging the wall of said chamber to form a seal therewith above and below said passages longitudinally of said member and portions of yielding material extending between and joining said rings to form a seal with said wall at the remote sides of said passages through said valve member, said valve member being constructed and arranged to be turned to bring the passages therethrough into and out of register with the passages in said first mentioned member.

member 'having a cylindrical chamber therein, said chamber having a pair of circumferentially .spaced passages leading therefrom and having a second pair of circumferentially spaced passages leading therefrom spaced longitudinally from said first mentioned passages, a valve member disposed in and coaxially with said chamber, said Valve member having rings of yielding material surrounding the same and engaging the wall of said chamber to form a seal therewith at either at either side of said second mentioned passages and having portions of yielding material extending between and joining said rings to form a seal with said wall, said valve members having 4. A valve structure having in combination, a

central chambers therein and circumferentially spaced passages leading therefrom to the periphery of said valve members adapted to register respectively with the passages in said chamber and means secured .to said valve members for rotating them in said chamber.

5. A valve structure having in combination, a valve casing, a cylindrical chamber therein, a plurality of 'circumferentially spaced pairs 01- passages extending through said casing from said in chamber, the passages of said pairs being spaced v longitudinally of said chamber, a pair of longitudinally spaced valve members fitting in said

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